Centrifugal separator.



n. BURTCH. v CENTRIFUGAL SEPABATOR.

' APPUCATION FILED DEC. 31.1914- 1,],61,839. Patented Nov. 30, 1915.-

4 SHEETS-SHEET l.

i V j'n/vemtar" o. BURTCH. CENTRIFUGAL SEPARATOR.

APPLICATION FILED. DEC. 31. l9l4.

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I D. BURTCH. CENTRIFUGAL SEPARATOR.

APPLICATION FILED DEC. 3I. 19.14.

Patented Nov. 30, 1915.

4 SHEETS SHEET 4.

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DELBERT BURTCH, OT; TORONTO, ONTARIO, CANADA.

onnraxrueat SEPARATOR.

menses.

To all whom it may concern:

Be it knownthatI, Dnnnna'r BUBTCH, of the city-of Toronto, in the county of York and Province of- Ontario, Don1inion of Canada, have invented certain new and use ful Improvements in Centrifugal Separators; and I hereby declare that the follo'wlng is a full, clear, and exact description of the same.

My invention relates to certain new and useful improvements-in centrifugal separators, such as are used in the separation of cream from milk, and the objects of my invention are :(a) to provide the rotative vessel or bowl with means by which it can be directly driven from any suitable source of power, this means preferably consisting of a horizontal tubular shaft, mounted in anti-friction bearings, and formed at one end with a clutch member removably. engaging with a corresponding clutch member having a. pulley or gearing, to which the motive power is applied; (12) to so arrange this tubular shaft that it can be used as a milk inlet, this being accomplished by mak-j ing the shaft hollow from the interior of the vessel or bowl to the endof the shaft opposite the clutch member and forming the shaft within the vessel or bowl with orifices or slots communicating with its bore, so that the fluid entering it can flow into the bowl;

tov so construct the anti-friction bearings that the fluid contents of the rotativevessci or bowl cannot enter the ball races and impair the anti-friction character of the bearings, this being accomplished by providing the bearings with casings containing drainage chambers having drainage openings through which the drip or back-wash from the vessel or bowl can flow away after entering the drainage chamber; (a?) to provide the separator with a feed pipe loosely centered in the hollow end of the tubularshaft and formed with a collar, the casing of the ad- .jacent bearing being provided with clamping means engaging the collar, to lock the feed pipe against the casing and prevent its movement during the rotation of the shaft; (e) to so arrange the frame that one of the bearings can be adjusted to the other,

lengthwise of the shaft, to permit of the removal and replacement of the vessel or bowl, and to so arrange the frame that a. protective casing is provided for the bowl; and (f) to provide the pan support with a spring latch engaging thecup at the upper end of the Specification of Letters Eaten/c.

feed, pipe, and correctly positioning it below the outlet of the milk pan resting upon fragmentary detail view of the feed pipeand the casing for the front bearing; Fig. 7, is a detail view of the outlet end of the feed pipe; Fig. 8, is a perspective view of the driving clutch member; Fig. 9, is a fragmentary perspective view of the pan-supporting standard and latch for holding-the feed cup; and, Fig. 10, is a detail view showing an alternative means for driving the rotative vessel.

Like characters of reference refer to like parts throughout the specification and drawings.

The frame consists of a base (1., having, at one end, a cylindrical standard 6, and, at the other end, a slideway c for the base d of the other standard e. The base I) and standard a are moved to and from the standard .12 by means of a lever f, pivoted at one end on. a stud g forming part of the base a, and connected to the based by means of a Patented Nov. 30, 1915.

Application filed December 31, 1914. Serial No. 879,884.

screw or bolt h, which extends through the I based and enters a plate 6 engaging the underside of the slideway c, to prevent the inadvertent separation of the base (i and standard e from the base a.

Each of the standards I) and e is bored axially of the frame and contained in these bores j are cylindrical casings k, is having side plates Z, l with circular openings m I therein and circular thrust shoulders o, 0 within the casings to receive the thrust of the bearings 72, p. The thrust shoulder 0' within the casing k is separated from the side plate Z to form a drainage chamber q, and formed through the casing is are drainage openings 9'', through which the' contents of the drainage chamber can flow out onto the lip 1- on the outer side of the standard e and then away from the apparatus.

The rotative vessel or bowl is provided with a horizontal shaft t journaled in the bear-- ings p, p. That/end of the shaft journaled 1n the bearing 7) is formed with a clutch member it which engages with a clutch member c on the inner endof a. stud w, preferloo . ably provided v'vitha phlley ratio'nlof the fluid contents A outer side ofithe bearing ,p and the lsha ftg standard 6 with the'cl'utch end of the-shaft" of the rotative Figs. 2 and 8, by Which power can bedivesselorbowl.

rectly appliedto the studandwlutch'mem; I InF g, If), I have shovv n the stud w to be ber Q), to cause the rotation of the horizontal provided With a pinion a: driven by a gear shaft 25, and the rotative vessel or.) boav.l.u;=tra1n y from a shaft 2, preferably turned 70 The stud 'w, asshown, in Figs. 2 and 4, is ibysacrank a".

contained Within the outer-end of a sleeve Toplacethe shaft of the rotatlve vessel or forming part of the bearing, VYhen the bowl 8 in bearings p, p, the handle of shaft 6 is in position Within t. ef'ramefthe'. the lever; 1s moved in the dlrectlon lndladjacentend of the shaft and its clutoh cated by arrow 1n F1g. 1, which movement member at arecontainedav i thin theiinnerend the effect of drawing the standard of the sleeve 3 which then operates to keep "away from the standard Z) to effect a separa= the clutch members in engagementand p -e tlon' between these tandards of sufiicient 111 vents, their radial separatron., The opposite terval to permlt o the rotat1ve' vessel or end ofthe horizontal shaft; ,extendsto the bowl 8 being inserted in the cylindrical- 3 from its outer end to the interior of the rota f the bearing p. The handle of the lever tiYevesselor-boy/1,,is formed with a bore 2, as then'moved- 1n the opposite direction, and ithin the interior of the rotati vevessel, Whlch has the effect of movlng the standard 1 I or bowl, is formed'withorificesor slots a: e tovvardgthe'standard Z) to bring 'the bear- .5

through Whichthe fluidcanenterthe bowl, ing gi intoposition to'receivethe opposite The lend of :the ishaft-t projectsv slightly ,be- 'end of the shaft t and lock the parts against yond .the outer side of the bearing 3; so that I lengthwise mo ement when the screw or bolt the drainage or leakage fromthe shaft can h is turned; to clainpthe plate 2' against the descend tothe bottom of .the,drainage.chamslidevvay 0'; the shaft t then being journaled 9 ber g and pass-through; thedrainage orifices inthe'bearings-to revolve when'power'is apg to the'exteriorof,the casing, ithout any plled to' the clutch member 2);tl1is clutch" possibilitypfit getting into ,the.ball races member, when the standard 6 is locked in and impairing the anti-friction qualitiesof its adjusted position, en'gagingwith the the bearing. z ,1 R: a

Extendingthroughg thev-circulanopening rotative vessel or bovvl. m in the side plate Z is the end of the feed The end of the feed pipe 6 is inserted intopipe I) which is IQQSIeIy centeredv Within the: the tubular end of the shaft tyand locked] adjacent endofthetubulanpart of the shaft against rotation byv means ofthe clamping t. The feed pipe bf, onltheouter side of the 4 Screw e ,cnga'ging its" collar 0 and the-160 plate Z, is; formed with acollar of notched, i spring latch g engaging the rim of the feed as shown, at .d, to cleartheelampingscrew cup, f. v The milk from the pan vvhich ewwhen the end ;of--the feed;-pip e is being, inbe supported on, the spider can then fi ow' serted into the bore of the horizontalshaft t. intothe feed cup and through the feed pipe When inserting-the end oftlie feed pipe into to the tubular ,part of the shaft t and enter 16s the hereof the tubular shaft t, thenotch d, the rotative vessel or bowl through the ori-" is brought into alinement with the clamping, fices or slots .a, tthecream being separated sorew- 'e andthecollarnc, ,isipressedagainst from the skim milk by the skimming disks the casing sidezorplate Zf-untilit clears th,e,,, u and. the cream passing .throughthe outlet head of the clamping-screw, ,the feed; pipe, w and the skim milk through the outlet ei/I then being turned to an-nprightposition to the creamandskim milk pans bf. and 0" the clampmgscrewduring, suchq'turning ,respectively. I movement engaging the cbllar. and locking-it, During :the. separation of the cream and tightly against the c asing.. ;At the upper: millqtherotative ivessel or bowl is caused to end of the feed pipe; is asfeedficup f, and. enrrevolve-aha highrate of speed by powerfapgagingtherimof the feedcup'fi. is aspringn rplied through the stud w,and"clutch memarms extending radially; from a hub; m-ad-- s to the standar'd b.-

W, l a,

cream .outlet e/ and: skim milk outlet w butfas no claim-1s made ltothese features, it ":fected,- water is fed through the-pipebua'hdlatch gficontainedwbetween the-forksihf -of-. fberspzz atidw'w t0 the horizontal shaftpt, the. one ,of the arms if ,of the.panssupportingp bowl and shaftbeing preferably.accurately sp1der.. The pan ssupporting' =spi'der,? ;asl ibalanced-and theibearings correctly alinedi H shown. in the drawings; .oonsists ofathreecrso that the centrifugal motion of the bowl-12o r is practically negligible,-thisubeing adv'isjustal ly conneot'edby ascrewthreadedstud able to-eliminate the-Wear uponathe bear-.-

w 1 ings butnot: vital to the successful operation; For cream separatlon'purposes, thero'tatu of :the separator, Which Will steadily-retivezvesseloribovv-l'amaybe-providedWitha volve in its bearings, Whether the=bowleis125 split wingdistrlbuter t, skimming disks a, balanced or not." a s I. V hen -the separation of 1 the cream 'is J e'f Willnot :be'necessary- -to describe them-in d tubular artof-the Shaina to at. i 2 describetheir action in the sepa-- p i m eirobatlve' vessel or boWLthe presence of Which-Within 1 0 1 clutch'member' a and directly driving the' the bowl washes the cream from. the distributer and skimming disks and forces it through the cream outlet the water, during the rotation of the bowl, passing. through 'the skim milk outlet in the usual way.

When the revolution of the rotative vessel or bowl ceases, the water remaining in it above the level of the lowermost part of the bore of the tubular shaft will drain out through the shaft; and, to take care of this drainage, the chamber 9 with the drainage orifices is provided.

Having thus fully described the nature of my invention, what I claim as new and desire to secure by Letters Patent is;

1. .A centrifugal separator comprising a rotative vessel, a horizontal shaft for the vessel, one end of which is provided with power-transmitting means and the other end of which is tubular with orifices communicating with the interior of said vessel, in combination with a stationary standard, and a movable standard having bearings in which said shaft is journaled, a cylindrical casing for one of said standards inclosing the base of the rotative vessel, and a set of pans extending from the cylindrical casing to the other standard inclosing the remainder of the rotative vessel.

' 2. A centrifugal separator comprising a (topics of this patent may be obtainedfor rotative vessel, a horizontal shaft for the vessel, one end of which is provided with power transmittingimeans and the other end of which is tubular with orifices-communicating with the interior of said vessel, in combination with a stationary standard having a bearing in which one end of the shaft "is journaled, and a cylindricalcasing inclosing the base of the rotative vessel, a movable standard having a bearing in which the other end of the shaft is journaled, and a set of pans inclosing the said vessel between the cylindrical casing and the opposite standard' 3. A centrifugal separator comprising a.-

.rotative. vessel having .a horizontal shaft,

a base, a standard at one end of the rotative vessel having a bearing for said shaft, said bearing having a cylindrical casing to partly five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

